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FBC1-FR Flexbox Fire Rated In-ceiling Back Box

 

Dimensions: 

14"W x 6"D x 17.5"H ( 355 x 152 x 445 mm)

  Material Thickness:  

1" (25 mm) nominal thickness

 

Weight: 

6.7 lbs (3 kg)

 

Material:  

Proprietary Composite Material

 

STC Rating:  

32

 

 

Flame Spread:  

23

 

Smoke Density:  

30 (ASTM E84/ NFPA 70)

 

Thermal Value:

  R 4.2

  Temperature Range:   -

40° F to 350° F (-40°C to 177°C)

 

Fire Rating:  

CLASS 1 Fire Rated

 

  ASTM E119 /NFPA 251 and UL 263  

 

 

  for 1 Hour Fire Rating

Technical Specifications

FBW1-FR Flexbox Fire Rated In-wall Back Box

 

Dimensions: 

14.5"W x 3.5"D x 16"H ( 368 x 89 x 406 mm)

  Material Thickness:  

1" (25 mm) nominal thickness

 

Weight: 

5.4 lb (2.4 kg)

 

Material:  

Proprietary Composite Material

 

STC Rating:  

32

 

Flame Spread:  

23

 

Smoke Density:  

30 (ASTM E84/ NFPA 70)

 

Thermal Value:

  R 4.2

  Temperature Range:   -

40° F to 350° F (-40°C to 177°C)

 

Fire Rating:  

CLASS 1 Fire Rated

 

  ASTM E119 /NFPA 251 and UL 263  

 

 

  for 1 Hour Fire Rating

Additional Tips / Considerations

If  possible,  run  speaker  wires  after  AC  wiring  is  in  place  to  avoid 

• 

induced hum caused by close parallel proximity of the two types of 

wire.
Avoid running speaker wires close to house electrical wiring for any 

• 

distance. If you have to run them parallel, leave two feet between the 

wiring. Speaker wires should cross AC lines at a 90° angle.

Route horizontal wire runs through holes drilled in studs at roughly 

• 

equal heights.
Secure speaker wires in place against a stud along vertical runs with 

• 

insulated staples only. Do not pierce the wire insulation. Allow a bit of 

slack for expansion of building materials.

Russound, Inc. 
5 Forbes Road, Newmarket, NH 03857
tel 603.659.5170 • fax 603.659.5388
email: tech@russound.com   www.russound.com

28-1337    1/08/09

©2009 Russound. All rights reserved.
All trademarks are the property of their respective owners.
Specifications are subject to change without notice. 
Russound is not responsible for typographical errors or omissions.

Flexbox Back Box Information

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